Browsing by Author Erni Valcárcel, Alfredo
Showing results 1 to 1 of 1
| Issue Date | Title | Author(s) |
|---|---|---|
| 1970 | Abastecimiento de agua potable y remoción de aguas servidas en Pamplona Alta | Dawson Vásquez, Harry D.; Risi Carrascal, Jose Miguel; Erni Valcárcel, Alfredo |
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